Absorption spectroscopy and Stokes polarimetry in a 87Rb vapour in the Voigt geometry with a 1.5 T external magnetic field

Ponciano-Ojeda, Francisco S.; Logue, Fraser D.; Hughes, Ifan G.

Abstract

This paper provides details of a spectroscopic investigation of a thermal 87Rb atomic vapour. The experiment was conducted with an external magnetic field of 1.5 T in the Voigt geometry. Very good quantitative agreement between experimental data and theory is found for all four Stokes parameters—with RMS errors of ~1.5% in all cases. From the fits to our experimental data a value for the magnetic field strength is extracted, along with the angle between the magnetic field and the polarisation of the light. The effects of the cell window birefringence on the optical rotation signals are characterised. This allows us to carry out precise measurements at a high field strength and arbitrary geometries, allowing further development of possible areas of application for atomic magnetometers.

Citation

Ponciano-Ojeda, F. S., Logue, F. D., & Hughes, I. G. (2021). Absorption spectroscopy and Stokes polarimetry in a 87Rb vapour in the Voigt geometry with a 1.5 T external magnetic field. Journal of Physics B: Atomic, Molecular and Optical Physics, 54(1), Article 015401. https://doi.org/10.1088/1361-6455/abc7ff

• Journal Article Type: Article
• Acceptance Date: Nov 5, 2020
• Online Publication Date: Dec 18, 2020
• Publication Date: Jan 6, 2021
• Deposit Date: Jun 26, 2020
• Publicly Available Date: Jan 25, 2021
• Journal: Journal of Physics B: Atomic, Molecular and Optical Physics
• Print ISSN: 0953-4075
• Electronic ISSN: 1361-6455
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 54
• Issue: 1
• Article Number: 015401
• DOI: https://doi.org/10.1088/1361-6455/abc7ff
• Public URL: https://durham-repository.worktribe.com/output/1267806
• Related Public URLs: https://arxiv.org/abs/2006.16052